PID-controller

The work proposes a comprehensive approach to the synthesis of the coefficients of PI- and PID-controllers, as well as the coefficients of feedback based on the state variables of the system, using the feedback linearization method for the synthesis of control influences. This approach considers not only the static but also the dynamic characteristics of the system, allowing for higher control accuracy. The feedback linearization method facilitates the transformation of nonlinear systems into linear ones, simplifying their further analysis and controller design.

The article discusses the features of the development of an automated process control system for a distillation column for alcohol recovery with PID controllers. A general scheme of the system, in which a distillation column is a key element, is built. Based on SCADA, the human-machine interface of the process control system of a distillation column was developed. The PID controller was implemented as a program unit of the control system and its operation was studied for the process of changing the vapor pressure in the heating system.